Tini Howard Books

THE NEW QUEEN OF CRIME!Punchline is out of jail and back on the streets of Gotham City. She's not coming back for some of what Gotham has to offer, she's coming back for all of it.She wants to be t...

Catwoman Vol. 2: Cat International

By Tini Howard

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It’s a new era for Catwoman, and she has a new target—Gotham City's underworld!Roman Sionis has been brought to his knees, but enough is enough. Catwoman’s vacation is over and it...

Catwoman Vol. 3: Duchess of Gotham

By Tini Howard

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Never cage her. Never chain her. Never try and keep her down.When Selina Kyle murders her lover Valmont to save her ex-lover Batman, she ends up behind bars—but leave it to a cat to thrive in...

Punchline

By Gleb Melnikov, Blake M. Howard, Tini Howard

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.